<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>

    <script src="https://lf3-cdn-tos.bytecdntp.com/cdn/expire-1-M/vue/2.6.14/vue.js" type="application/javascript"></script>
</head>
<body>
    <div id="app">
        <!-- .enter是回车按钮修饰符,语法糖 -->
        <!-- <input @keyup.13="onKeyup"></input> -->
        <input @keyup.enter="onKeyup"></input>
    </div>
</body>
<script >
    new Vue({
        el: '#app',
        data() {
            return {
                msg: 'hello vue'
            }
        },
        methods: {
            onKeyup(e){
                // if(e.keyCode === 13){
                //     console.log('按下回车')
                // }
                // console.log('键盘抬起',e)

                console.log('按下回车')
            }
        },
    })
</script>
</html>
